Velocity (dynamic) pressure
If velocity pressure is regarded as kinetic energy per unit volume then, denoting the mean velocity of airflow by V, mass by m and density by p, the following can be derived:
* = Тжйг = °’5P1’2 <I5’25)
|
(15.26) |
If the density of air is taken as 1.20 kg m-3 the equation becomes
and the converse is
|
(15.27) |
V= 1.291-Vp7
Posted in Engineering Fifth Edition